cvs commit: src/sys/kern vfs_mount.c src/sys/sys vnode.h src/sys/ufs/ffs ffs_softdep.c

[Konstantin Belousov]

kib         2008-03-23 13:45:24 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_mount.c 
    sys/sys              vnode.h 
    sys/ufs/ffs          ffs_softdep.c 
  Log:
  Yield the cpu in the kernel while iterating the list of the
  vnodes belonging to the mountpoint. Also, yield when in the
  softdep_process_worklist() even when we are not going to sleep due to
  buffer drain.
  
  It is believed that the ULE fixed the problem [1], but the yielding
  seems to be needed at least for the 4BSD case.
  
  Discussed:      on stable@, with bde
  Reviewed by:    tegge, jeff [1]
  MFC after:      2 weeks
  
  Revision  Changes    Path
  1.277     +6 -0      src/sys/kern/vfs_mount.c
  1.332     +2 -0      src/sys/sys/vnode.h
  1.222     +1 -0      src/sys/ufs/ffs/ffs_softdep.c